ES8404593A1 - Television transmission method, transmitter and receiver with a plurality of sound channels. - Google Patents

Television transmission method, transmitter and receiver with a plurality of sound channels.

Info

Publication number
ES8404593A1
ES8404593A1 ES519651A ES519651A ES8404593A1 ES 8404593 A1 ES8404593 A1 ES 8404593A1 ES 519651 A ES519651 A ES 519651A ES 519651 A ES519651 A ES 519651A ES 8404593 A1 ES8404593 A1 ES 8404593A1
Authority
ES
Spain
Prior art keywords
transmission method
transmitter
receiver
television transmission
sound channels
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
ES519651A
Other languages
Spanish (es)
Other versions
ES519651A0 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of ES519651A0 publication Critical patent/ES519651A0/en
Publication of ES8404593A1 publication Critical patent/ES8404593A1/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J9/00—Multiplex systems in which each channel is represented by a different type of modulation of the carrier
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/06—Systems for the simultaneous transmission of one television signal, i.e. both picture and sound, by more than one carrier

Abstract

1. A television transmission method combining the transmission of images with that of a plurality of sound channels in which amplitude modulation of a carrier (7) is employed for transmitting a first sound channel, said carrier being also frequency or phase shift keying modulated by so as to transmit at least a second sound channel, characterized in that the modulating signal used for said frequency or phase shift keying is a sub-carrier which is directly modulated by the audio frequency signal of a second sound channel.
ES519651A 1982-02-11 1983-02-09 Television transmission method, transmitter and receiver with a plurality of sound channels. Expired ES8404593A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8202264A FR2521374B1 (en) 1982-02-11 1982-02-11 METHOD FOR TRANSMITTING TELEVISION WITH SEVERAL WAYS OF SOUND, AND TELEVISION WITH MULTIPLE WAYS OF SOUND

Publications (2)

Publication Number Publication Date
ES519651A0 ES519651A0 (en) 1984-04-16
ES8404593A1 true ES8404593A1 (en) 1984-04-16

Family

ID=9270897

Family Applications (1)

Application Number Title Priority Date Filing Date
ES519651A Expired ES8404593A1 (en) 1982-02-11 1983-02-09 Television transmission method, transmitter and receiver with a plurality of sound channels.

Country Status (5)

Country Link
EP (1) EP0086525B1 (en)
DE (1) DE3365374D1 (en)
ES (1) ES8404593A1 (en)
FR (1) FR2521374B1 (en)
MC (1) MC1508A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4816781A (en) * 1987-06-22 1989-03-28 General Instrument Corporation FM modulator
IT8921239A0 (en) * 1989-07-19 1989-07-19 Elettronica Ind Spa PROCEDURE FOR RADIO TRANSMISSION AND DETECTION OF A VIDEO SIGNAL WITH AT LEAST TWO ASSOCIATED AUDIO SIGNALS, FOR THE MODULATION AND SEPARATE USE OF AT LEAST ONE OF SUCH AUDIO SIGNALS, AND RELATIVE DEMODULATOR DEVICE.
FR2735629A1 (en) * 1995-06-14 1996-12-20 Philips Electronics Nv AMPLITUDE MODULATOR

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR894994A (en) * 1943-05-14 1945-01-11 Radioelectrique Soc Ind Double modulation transmission system
US2578714A (en) * 1947-09-18 1951-12-18 Faximile Inc Sound and facsimile multiplex system
FR1107198A (en) * 1954-06-15 1955-12-28 Electronique & Physique Dual transmission system
US2878319A (en) * 1957-06-25 1959-03-17 Nathaniel L Leek Multiplex transmission system

Also Published As

Publication number Publication date
ES519651A0 (en) 1984-04-16
FR2521374A1 (en) 1983-08-12
MC1508A1 (en) 1983-11-17
EP0086525A1 (en) 1983-08-24
FR2521374B1 (en) 1986-03-28
DE3365374D1 (en) 1986-09-25
EP0086525B1 (en) 1986-08-20

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